Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "This has been a smaller cycle with many of the commits being smallish
  code fixes and improvements across the drivers.

   - Driver updates for bnxt_re, cxgb4, hfi1, hns, mlx5, nes, qedr, and
     rxe

   - Memory window support in hns

   - mlx5 user API 'flow mutate/steering' allows accessing the full
     packet mangling and matching machinery from user space

   - Support inter-working with verbs API calls in the 'devx' mlx5 user
     API, and provide options to use devx with less privilege

   - Modernize the use of syfs and the device interface to use attribute
     groups and cdev properly for uverbs, and clean up some of the core
     code's device list management

   - More progress on net namespaces for RDMA devices

   - Consolidate driver BAR mmapping support into core code helpers and
     rework how RDMA holds poitners to mm_struct for get_user_pages
     cases

   - First pass to use 'dev_name' instead of ib_device->name

   - Device renaming for RDMA devices"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (242 commits)
  IB/mlx5: Add support for extended atomic operations
  RDMA/core: Fix comment for hw stats init for port == 0
  RDMA/core: Refactor ib_register_device() function
  RDMA/core: Fix unwinding flow in case of error to register device
  ib_srp: Remove WARN_ON in srp_terminate_io()
  IB/mlx5: Allow scatter to CQE without global signaled WRs
  IB/mlx5: Verify that driver supports user flags
  IB/mlx5: Support scatter to CQE for DC transport type
  RDMA/drivers: Use core provided API for registering device attributes
  RDMA/core: Allow existing drivers to set one sysfs group per device
  IB/rxe: Remove unnecessary enum values
  RDMA/umad: Use kernel API to allocate umad indexes
  RDMA/uverbs: Use kernel API to allocate uverbs indexes
  RDMA/core: Increase total number of RDMA ports across all devices
  IB/mlx4: Add port and TID to MAD debug print
  IB/mlx4: Enable debug print of SMPs
  RDMA/core: Rename ports_parent to ports_kobj
  RDMA/core: Do not expose unsupported counters
  IB/mlx4: Refer to the device kobject instead of ports_parent
  RDMA/nldev: Allow IB device rename through RDMA netlink
  ...

1 files changed, 19 insertions, 25 deletions

diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 0d3473b4596e..691c6f048938 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -1076,16 +1076,17 @@ static int mthca_unmap_fmr(struct list_head *fmr_list)
 	return err;
 }
 
-static ssize_t show_rev(struct device *device, struct device_attribute *attr,
-			char *buf)
+static ssize_t hw_rev_show(struct device *device,
+			   struct device_attribute *attr, char *buf)
 {
 	struct mthca_dev *dev =
 		container_of(device, struct mthca_dev, ib_dev.dev);
 	return sprintf(buf, "%x\n", dev->rev_id);
 }
+static DEVICE_ATTR_RO(hw_rev);
 
-static ssize_t show_hca(struct device *device, struct device_attribute *attr,
-			char *buf)
+static ssize_t hca_type_show(struct device *device,
+			     struct device_attribute *attr, char *buf)
 {
 	struct mthca_dev *dev =
 		container_of(device, struct mthca_dev, ib_dev.dev);
@@ -1103,23 +1104,26 @@ static ssize_t show_hca(struct device *device, struct device_attribute *attr,
 		return sprintf(buf, "unknown\n");
 	}
 }
+static DEVICE_ATTR_RO(hca_type);
 
-static ssize_t show_board(struct device *device, struct device_attribute *attr,
-			  char *buf)
+static ssize_t board_id_show(struct device *device,
+			     struct device_attribute *attr, char *buf)
 {
 	struct mthca_dev *dev =
 		container_of(device, struct mthca_dev, ib_dev.dev);
 	return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id);
 }
+static DEVICE_ATTR_RO(board_id);
 
-static DEVICE_ATTR(hw_rev,   S_IRUGO, show_rev,    NULL);
-static DEVICE_ATTR(hca_type, S_IRUGO, show_hca,    NULL);
-static DEVICE_ATTR(board_id, S_IRUGO, show_board,  NULL);
+static struct attribute *mthca_dev_attributes[] = {
+	&dev_attr_hw_rev.attr,
+	&dev_attr_hca_type.attr,
+	&dev_attr_board_id.attr,
+	NULL
+};
 
-static struct device_attribute *mthca_dev_attributes[] = {
-	&dev_attr_hw_rev,
-	&dev_attr_hca_type,
-	&dev_attr_board_id
+static const struct attribute_group mthca_attr_group = {
+	.attrs = mthca_dev_attributes,
 };
 
 static int mthca_init_node_data(struct mthca_dev *dev)
@@ -1192,13 +1196,11 @@ static void get_dev_fw_str(struct ib_device *device, char *str)
 int mthca_register_device(struct mthca_dev *dev)
 {
 	int ret;
-	int i;
 
 	ret = mthca_init_node_data(dev);
 	if (ret)
 		return ret;
 
-	strlcpy(dev->ib_dev.name, "mthca%d", IB_DEVICE_NAME_MAX);
 	dev->ib_dev.owner                = THIS_MODULE;
 
 	dev->ib_dev.uverbs_abi_ver	 = MTHCA_UVERBS_ABI_VERSION;
@@ -1296,20 +1298,12 @@ int mthca_register_device(struct mthca_dev *dev)
 
 	mutex_init(&dev->cap_mask_mutex);
 
+	rdma_set_device_sysfs_group(&dev->ib_dev, &mthca_attr_group);
 	dev->ib_dev.driver_id = RDMA_DRIVER_MTHCA;
-	ret = ib_register_device(&dev->ib_dev, NULL);
+	ret = ib_register_device(&dev->ib_dev, "mthca%d", NULL);
 	if (ret)
 		return ret;
 
-	for (i = 0; i < ARRAY_SIZE(mthca_dev_attributes); ++i) {
-		ret = device_create_file(&dev->ib_dev.dev,
-					 mthca_dev_attributes[i]);
-		if (ret) {
-			ib_unregister_device(&dev->ib_dev);
-			return ret;
-		}
-	}
-
 	mthca_start_catas_poll(dev);
 
 	return 0;